diff options
| author | Eirik Aavitsland <eirik.aavitsland@qt.io> | 2021-01-26 17:29:08 +0100 |
|---|---|---|
| committer | Eirik Aavitsland <eirik.aavitsland@qt.io> | 2021-01-28 11:02:18 +0100 |
| commit | bfc09b8d8fa6c1a397aff458c644ed424754adf0 (patch) | |
| tree | 048ad40775e6c948e0ee5c4588ec9da0993d399b /tests/auto | |
| parent | 07c248a594e9baf0910d4edd12d5b695abe496b8 (diff) | |
Avoid overflow in text layout
Fixes oss-fuzz issue 29313.
Pick-to: 6.0 5.15
Change-Id: Idbabd162fa9e0dbce687981bdbcc75be37189a61
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
Reviewed-by: Robert Löhning <robert.loehning@qt.io>
Diffstat (limited to 'tests/auto')
| -rw-r--r-- | tests/auto/gui/text/qtextlayout/tst_qtextlayout.cpp | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/tests/auto/gui/text/qtextlayout/tst_qtextlayout.cpp b/tests/auto/gui/text/qtextlayout/tst_qtextlayout.cpp index ebbc21836b..0e5216f3c9 100644 --- a/tests/auto/gui/text/qtextlayout/tst_qtextlayout.cpp +++ b/tests/auto/gui/text/qtextlayout/tst_qtextlayout.cpp @@ -1895,6 +1895,19 @@ void tst_QTextLayout::longText() QVERIFY(line.isValid()); QVERIFY(line.cursorToX(line.textLength() - 1) > 0); } + + { + QTextLayout layout(QString("Qt rocks! ").repeated(200000)); + layout.setCacheEnabled(true); + layout.beginLayout(); + forever { + QTextLine line = layout.createLine(); + if (!line.isValid()) + break; + } + layout.endLayout(); + QVERIFY(layout.maximumWidth() <= QFIXED_MAX); + } } void tst_QTextLayout::widthOfTabs() |